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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
10
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pubmed:dateCreated |
1986-12-22
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pubmed:abstractText |
Focused microwave irradiation was employed to stabilize endogenous whole rat brain bradykinin levels prior to a simple extraction procedure. Skull microwave exposure (2450 MHz, 3.8 kW., 2.45 sec) resulted in inactivation to less than 5% of control of whole brain kallikrein and kininase activity. Using this adequate exposure duration whole rat brain kinin levels as measured by a sensitive radioimmunoassay were approximately 0.6 pmol/g (wet weight). Further purification of irradiated brain extracts using HPLC revealed that immunoreactive kinin eluted as a single peak that co-chromatographed with authentic bradykinin. Microwave fixation duration of 1.25 sec yielded greatly increased levels of immunoreactive kinin which following HPLC purification eluted in two peaks, corresponding to authentic bradykinin and T-kinin, respectively. The tissue injury resulting from incomplete microwave fixation resulted in the release of kinins. This excess immunoreactive kinin may be derived from cerebral blood, since the predominant form of kinin-generating protein in plasma is T-kininogen.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Carboxypeptidases,
http://linkedlifedata.com/resource/pubmed/chemical/Kallikreins,
http://linkedlifedata.com/resource/pubmed/chemical/Kinins,
http://linkedlifedata.com/resource/pubmed/chemical/Lysine Carboxypeptidase,
http://linkedlifedata.com/resource/pubmed/chemical/Peptidyl-Dipeptidase A
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0364-3190
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
11
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
1463-71
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:3024045-Animals,
pubmed-meshheading:3024045-Brain,
pubmed-meshheading:3024045-Carboxypeptidases,
pubmed-meshheading:3024045-Kallikreins,
pubmed-meshheading:3024045-Kinetics,
pubmed-meshheading:3024045-Kinins,
pubmed-meshheading:3024045-Lysine Carboxypeptidase,
pubmed-meshheading:3024045-Male,
pubmed-meshheading:3024045-Microwaves,
pubmed-meshheading:3024045-Peptidyl-Dipeptidase A,
pubmed-meshheading:3024045-Rats,
pubmed-meshheading:3024045-Rats, Inbred Strains
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pubmed:year |
1986
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pubmed:articleTitle |
Inactivation of kallikrein and kininases and stabilization of whole rat brain kinin levels following focused microwave irradiation.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, Non-P.H.S.
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